US2983071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction elements
Assignee: Individual
•
Filing: 1959-01-13
•
Granted: 1961-05-09
•
Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Oliver Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:33
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/108; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/344; Y10T403/345
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |